
Early inhaler for ether anaesthesia
1847-1848
1847-1848
1845-1855
1853-1857
1845-1855
1838
1801-1840 (original); 1901 (model)
circa 1846
2000-100 BCE
1851
1849
1855
1854
1840
1842
1850
1837
1837
1833
circa 1854
1850
circa 1854
circa 1840
1855
1849
1841
1842
1840-1850
1842
1850-1856
1848
1837
1850
1850-1857
1835
1834
1834
1834
1845
1845
1842
1856
1855
1856
1848-1852
1854
1841
1851
1838
1846
1844